LEPIDOPTERA HETEROCERA* 205 



and dislocated, slender and convoluted from thence to the tips. 

 Abdomen smooth, compressed towards the tip, not extending beyond 

 the hind wings. Legs rather long and slender, almost bare ; spurs 

 very long; fore femora and fore tibiae short, fringed beneath. 

 Wings broad, rather short. Fore wings subfalcate; exterior border 

 slightly convex, moderately oblique. 



This genus seems to be nearly allied to the Noctuites, and 

 several other Herminidce may be considered aberrant forms of some 

 of the families of that tribe. 



1. DlERNA ACANTHUSALIS. 



Mas. Albido-testacea ; articulus palporum 2us extus fuscus ; alee 

 sabconspersce, punctis marginalibus nigricantibus ; anticce 

 lineis valde indistinctis, linea pallida recta obliqua exteriore 

 puncto strigaque apud marginem interiorem punctoque discali 

 exteriore nigris, macula discali subtus obscure fusca. 



Male. Whitish testaceous. Second joint of the palpi brown 

 on the outer side. Wings slightly speckled with pale brown ; mar- 

 ginal points blackish. Fore wings with the lines a little darker 

 than the ground-colour, very indistinct; a pale straight line ex- 

 tending from near the tip of the costa to beyond the middle of the 

 interior border, on approaching which it is lost in au elongated 

 black mark, and is contiguous to a black point before its middle ; 

 another black point on the interior border before the middle; under 

 side with a dark brown discal spot. Hind wings with a dark brown 

 discal point on the under side. Length of the body 6^ lines ; of the 

 wings 14 lines. 



a. North Hindostan. From Mr. James' collection. 



Genus 47. DIETHUSA. 



Mas. Corpus robustum. Palpi breves, oblique ascendentes ; 

 articulus 2us pubescens, latissiraus ; 3us longi-conicus, subnudus, 

 2i triente non longior. Antennae validae ; articuli subfasciculati. 

 Thorax squamosus. Abdomen apicem versus subcompressum, alas 

 posticas paullo superans. Pedes validi, pilis longis dense fimbriati. 

 Alae subdenticulatae ; anticae vix subfalcatae, margine exteriore sub- 

 angulato. 



Male. Body stout. Palpi short, obliquely ascending ; second 

 joint pubescent, very broad; third elongate-conical, almost bare, 



